The reserve is locates in the Crevaux community, district 5 of the Yacuiba municipality, in the Gran Chaco Province of the Tarija department. With and area of 850 hectares, bordering to the north with La Ceiba indigenous community, the Pilcomayo river at the southwest and the TCO Weenhayek.
The reserve is located at 5km for the right bank of the Pilcomayo River (21 ° 52´30.47´´S and 62 ° 54´32.27´´W), between the Weenhayeks indigenous communities. With an altitudinal variant from 280 to 310 meters above sea level.
The reserve has a subtropical xerophilous forest, where trees represent more than 75% of the vegetation cover.
The most representative characteristics are: 1) There is a dominance of trees combined with shrubs, 2) The deciduous winter vegetation, 3) Reduced and / or coriaceous leaves, many modified to spines to avoid water loss, 4) Stems adapted to water reserve.
The most common trees are Quebracho Colorado (Schinopsis quebracho colorado Schlencht), and Quebracho blanco (Aspidosperma quebracho-blanco), Palo Santo (Bulnesia sarmientoi Lorentz ex Griseb), Brea (Cercidium praecox). The typical shrub layer composed by Duraznillo, Escayante, Garabato, Sachasandia, tunas or quimilís (Opuntia quimilo), cactus -cardones, ucle (Cereus coryne).
Due to heavy cattle presence, the herbaceous layer is little, however, during the rainy season you can observe a great herbaceous regeneration, plants like caraguata a characteristic bromeliad of the plain, which is found in frequent patches, and it is also use by the Weenhayek nation, they use the fiber for their handicrafts.
Regarding the fauna, you can find several species, big mammals such as the Giant anteater (Myrmecophaga tridactyla), honey bear (Tamandua tetradactyla). You can also find several species of cats, like the Felis geoffroyi and Felis pardalis, the South American lion (Puma concolor). The Chacoan pig qimilero or solitaries (Catagonus wagnerii) the wite lipped pecary (Tayassu tajacu), the collared peccary (Tayassu pecari), the ball quirquincho (Tolypeutes matacus), the gray cat (Puma yagouaroundi), the two South American dear or corzuelas (Mazama americana and M. gouazoubira). Birds such as the charata (Ortalis canicollis), the chuña (Chunga burmeisteri), Paloma (Leptotila verreauxi) and Toc Tec (Theristicus caudatus).
Photos were taken with camera traps of the fauna